| APA | SPNK. (2012, February 17). In Acronym Geek. Retrieved 05:35, February 17, 2012, from http://www.acronymgeek.com/SPNK |
| MLA | "SPNK." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/SPNK>. |
| MHRA | 'SPNK', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/SPNK> [accessed 17 February 2012] |
| Chicago | "SPNK", http://www.acronymgeek.com/SPNK (accessed February 17, 2012). |
| CBE/CSE | SPNK [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/SPNK. |
| Bluebook | SPNK, http://www.acronymgeek.com/SPNK (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPNK, http://www.acronymgeek.com/SPNK (optional description here) (as of Feb. 17, 2012, 05:35). |
| AMA | SPNK. Acronym Geek. February 17, 2012, 05:35. Available at: http://www.acronymgeek.com/SPNK. Accessed February 17, 2012, 05:35. |